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Re: [Qemu-devel] [BUG] Balloon malfunctions with memory hotplug


From: Luiz Capitulino
Subject: Re: [Qemu-devel] [BUG] Balloon malfunctions with memory hotplug
Date: Mon, 2 Mar 2015 14:04:54 -0500

On Mon, 2 Mar 2015 11:52:34 +0530
Amit Shah <address@hidden> wrote:

> > >Another important detail is that, I *suspect* that a very similar
> > >bug already exists with 32-bit guests even without memory
> > >hotplug: what happens if you assign 6GB to a 32-bit without PAE
> > >support? I think the same problem we're seeing with memory
> > >hotplug will happen and solution 1 won't fix this, although
> > >no one seems to care about 32-bit guests...
> 
> Not just 32-bit guests; even 64-bit guests restricted with mem= on the
> cmdline.  

You're right. So, it's an already existing issue that becomes very
apparent with memory hotplug.

> I know we've discussed this in the past, and I recall
> virtio-balloon v2 was going to address this all; sadly I've not kept
> uptodate with it.

Me neither :(



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